and when it grows back, the only reason funky colicks (sp?) would show up is if they were already there and the short hair accentuates it.
although the life span of a hair follicale or whatever it is where it originates is 7 years and then it regenerates - I've read that every 7 years your hair will be slightly different - I used to have blonder hair when I was little and while I was in high school it used to be curlier.
I think in general though, the every 7 years thing might likely be bullshit b/c it isn't like every hair follicle regenerates at the same time, they are all constantly doing it.